First of all, as an outdoor headlight, you must have the following three important performance indicators:
1. Waterproof In the outdoor camping hiking or other nighttime work, it is inevitable to encounter rainy days. Therefore, the headlights must be waterproof. Otherwise, the rain or water immersion will cause the circuit to be short-circuited to cause extinction or light and darkness, posing a safety hazard in the dark. Then, when purchasing the headlights, it is necessary to see if there is a waterproof logo, and it must be greater than the waterproof level of IXP3 or above. The greater the number, the better the waterproof performance.
2. Resistance to falling A headlamp with good performance must have resistance to impact (impact resistance). The general test method is that the height of 2 meters is free to fall without damage. In outdoor sports, it may also be worn because of looseness. The reason for the slipping phenomenon is that if the casing is cracked due to falling, the battery is disconnected or the internal circuit is broken, it is a terrible thing to look for the battery to fall off in the dark, so such a headlight is definitely not safe, so it is selected. At the time of purchase, you should also see if there is any anti-fall mark, or ask the owner of the headlamp's resistance to fall.
3. Cold resistance is mainly for outdoor activities in the northern region and high altitude areas, especially the headlights of the split battery box. If the headlights of inferior PVC wires are used, it is very likely that the wire skin is hard due to the cold. It becomes brittle, causing the internal core to break, so if you want to use the outdoor headlights at low temperatures, you must pay more attention to the cold-resistant design of the product.
Followed by the lighting efficiency of the headlights:
1. Light source The brightness of any lighting product depends mainly on the light source, which is commonly known as the light bulb. The most common light source in general outdoor headlights is LED or xenon bulb. The main advantage of LED is energy saving and longevity, but the disadvantage is low brightness. Poor penetrating power.
The main advantage of Xenon bulbs is that they have a long range and strong penetrating power, while the disadvantages are relative power consumption and short lamp life. With the rapid advancement of technology, LED technology is becoming more and more mature, high-power LED has gradually become the mainstream, color temperature is also close to Xenon bulb 4000K-4500K, but relatively high cost.
2. Circuit design unilateral evaluation The brightness or battery life of a lamp is meaningless. The same current level of the same bulb is theoretically the same. Unless there is a problem with the design of the light cup or lens, a headlight is determined. Whether energy saving mainly depends on circuit design, efficient circuit design reduces power consumption, that is, the same brightness of the same battery who takes longer.
3. Materials and workmanship A high-quality headlamp must use high-quality materials. At present, most high-end headlamps use PC/ABS as the outer casing. The main advantage is strong impact resistance. The wall thickness of 0.8MM thickness can exceed the strength. 1.5MM thickness of inferior plastic material. This greatly reduces the weight of the headlights, most of the phone case is made of this material.
4. Structural design When selecting the headlights, besides paying attention to the above-mentioned elements, it is necessary to see whether the structure is reasonable and reliable. When wearing the head, it is flexible and reliable to adjust the lighting angle up and down. The power switch is easy to operate and will be put into the backpack. Will not open unintentionally.
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